Pen needle guides

Plain-English answers about pen needle sizes, injection comfort, travel, storage and which needles fit your pen.

Shop pen needles

Blog

Pen Needles for KwikPen: A Lilly KwikPen Family Guide to Fit and Size
Which pen needles fit Lilly KwikPen insulin pens, how to choose a length and gauge, and how many to buy when you use more than one KwikPen.